radioactive tracer

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Related to Radioactive label: Radioactive tracer, radiotracer

radioactive tracer

[¦rād·ē·ō′ak·tiv ′trā·sər]
(nucleonics)
A radioactive isotope which, when attached to a chemically similar substance or injected into a biological or physical system, can be traced by radiation detection devices, permitting determination of the distribution or location of the substance to which it is attached. Also known as radiotracer.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Excess precursor and toxic products are removed by rapid and simple filtration, and the radioactive labels are freed with oxidants for use.
OctreoPharm is focused on the development of radioactive labeled compounds for molecular imaging diagnostics and therapeutic applications.
To differentiate cancer cells from normal cells, Johns Hopkins scientists connected PEG-Prom to either a gene that produces firefly luciferase, the substance that make fireflies glow, or a gene called HSV1tk, which initiates a chemical reaction with radioactive labels inside the cell that can be detected by imaging devices.

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